Nova: Phonology: Vowel Quality Inventories: Small (2-4)
/a e i o/; < u > represents /w/, and may prove to have been a poor orthographic choice... Vowels contrast for tone and nasalization, and each diacritic codes tone and nasalization simultaneously (hence the profusion of vowel diacritics): /a_1 a~_1 a_2 a~_2 a_3 a~_3/ <á ā a ã à ą>
